These 144 Watt CREE™ LED Light Fixtures provide a great light spread and penetration from 24 inches up to 48 inches of water depth. Are perfect for large to nano sized aquariums and up!. The unit measures approx. 36 inches in Length x 5.5 inches in Width x 2.5 inches in Height. Compact slim footprint is extremely easy to maneuver. read more...